20377385

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2683}}^1$

素因数の和:2733

約数の個数: 24

約数和(自身を含む): 29373696

約数和(自身を除く): 8996311

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 2683, 7595, 13415, 18781, 83173, 93905, 131467, 415865, 582211, 657335, 2911055, 4075477, 20377385]

約数ペア:

[(1, 20377385), (5, 4075477), (7, 2911055), (31, 657335), (35, 582211), (49, 415865), (155, 131467), (217, 93905), (245, 83173), (1085, 18781), (1519, 13415), (2683, 7595)]